The Movie Timeline - be obsessive, be very obsessive
Spider-Man 3 - timeline
August: Ben & May Parker are married. (Queens, NY)
Venom comes from space and transforms Spider-Man into Dark Spider-Man. He fights Harry Osborn (the New Goblin) and the Sandman. Venom gets onto Eddie Brock. Spider-Man and the New Goblin fight Sandman and Venom. Eddie, Venom, and Harry die while Spider-Man lets Sandman leave and live. Peter and Mary-Jane renew their relationship.